Possible issue's with Speedbox 2

Tilts

Just Joined
Jul 12, 2018
2
2
48
Hi all.

Recently fitted a speedbox 2 to my BMW cruise which is fitted with a Bosch Performance Line motor.

Straight forward installation, but when keep getting a 503 fault after a short while whilst in derestricted mode. Power shuts down and I have to power off for a while whilst it resets itself.

No issues when the speedbox is odf, only when activated.

Anyone else had a similar problems?

Could it be a faulty speedbox or a faulty speed sensor? Bearing in mind this only happens with Speedbox activated.

Ta.
 

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